W Tungsten     Atomic number : 74 
    Relative atomic mass (12C = 12.0000) :  183.84 
    P H Y S I C A L     D A T A
Group 6 transition metal
 
Density / kg m-3 :  19 300 [293 K]; 17 700 [liquid at m.p.]
 
Melting point / K :  3680 ± 20 
 
Boiling point / K :  5930
 
    D I S C O V E R Y
Discovered in 1783 by J.J. and F. Elhuijar at Vergara, Spain.
 
    G E O L O G I C A L     D A T A
Abundances
 
Sun (relative to H = 1 × 1012) : 50
 
Earth's crust / p.p.m. : 1
 
Residence time / years : n.a.
 
Oxidation state : VI
 
  
 
Seawater / p.p.m. : 9.2 × 10-5
    B I O L O G I C A L     D A T A
Level in humans
 
Blood / mg dm-3 : 0.001
 
Bone / p.p.m. : 0.00025
 
Liver / p.p.m. : n.a.
 
Muscle / p.p.m. : n.a.
 
  
 
Daily dietary intake : 0.001 - 0.015 mg
 
Total mass of element
in average (70 kg) person :
c. 0.02 mg

 

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A portrait of tungsten is available on the Visual Elements site. Up to 200 individual items of information on this element are available in The Elements.


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NetElements II last modified October 27th, 1999